Chiclayo's 2025 population is now estimated at 678,933. In 1950, the population of Chiclayo was 53,580. Chiclayo has grown by 8,545 in the last year, which represents a 1.27% annual change. These population estimates and projections come from the latest revision of the UN World Urbanization Prospects . These estimates represent the Urban agglomeration of Chiclayo, which typically includes Chiclayo's population in addition to adjacent suburban areas.